Which of these association football team members can be identified by wearing an armband?
The team captain of an association football team, sometimes known as the skipper, is a team member chosen to be the on-pitch leader of the team; they are often one of the older/or more experienced members of the squad, or a player that can heavily influence a game or has good leadership qualities. The team captain is usually identified by the wearing of an armband.
The only official responsibility of a captain specified by the Laws of the Game is to participate in the coin toss prior to kick-off (for choice of ends or to have kick-off) and prior to a penalty shootout. Contrary to what is sometimes said, captains have no special authority under the Laws to challenge a decision by the referee. However, referees may talk to the captain of a side about the side's general behaviour when necessary.
At an award-giving ceremony after a fixture like a cup competition final, the captain usually leads the team up to collect their medals. Any trophy won by a team will be received by the captain who will also be the first one to hoist it. The captain also generally leads the teams out of the dressing room at the start of the match.
The captain generally provides a rallying point for the team: if morale is low, it is the captain who will be looked upon to boost their team's spirits.
A "club captain" is usually appointed for a season. If they are unavailable or not selected for a particular game, or must leave the pitch, then the club vice-captain will assume similar duties.